We measured the 7Be(p,gamma)8B cross section from E_cm = 186 to 1200 keV, with a statistical-plus-systematic precision per point of better than +- 5%. All important systematic errors were measured including 8B backscattering losses. We obtain S_17(0) = 22.3 +- 0.7(expt) +- 0.5(theor) eV-b from our data at E_cm <= 300 keV and the theory of Descouvemont and Baye.
@article{arxiv.nucl-ex/0111014,
title = {7Be(p,gamma)8B astrophysical S-factor from precision cross section measurements},
author = {A. R. Junghans and E. C. Mohrmann and K. A. Snover and T. D. Steiger and E. G. Adelberger and J. -M. Casandjian and H. E. Swanson and L. Buchmann and S. H. Park and A. Zyuzin},
journal= {arXiv preprint arXiv:nucl-ex/0111014},
year = {2009}
}